Cool FormKit Lite <= 2.7.9 - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via Form Field custom_id Parameter
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
The Cool FormKit Lite plugin for WordPress, which adds an advanced form builder to Elementor, is affected. An authenticated user with contributor-level access or higher can inject malicious scripts into pages through a form field setting, and those scripts run in the browser of any visitor who opens the affected page.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
The Cool FormKit Lite – Advanced Form Builder for Elementor plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the '_elementor_data.form_fields[].custom_id' parameter in all versions up to, and including, 2.7.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The esc_html() call applied at server emission is bypassed because the HTML fragment-serialization algorithm restores " to a raw double-quote inside text nodes when jQuery .html() extracts the template, allowing the attacker-controlled custom_id to break out of an HTML attribute context within the plugin's own frontend script.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- coolplugins Cool FormKit Lite – Advanced Form Builder for Elementor
through 2.7.9
References 7
plugins.trac.wordpress.org
- browser/extensions-for-elementor-form/tags/2.7.9/assets/js/shared/logic-frontend.js#L719
- browser/extensions-for-elementor-form/tags/2.7.9/includes/fields/conditional-fields-trait.php#L753
- browser/extensions-for-elementor-form/tags/2.7.9/includes/fields/conditional-fields-trait.php#L704
- browser/extensions-for-elementor-form/tags/2.7.9/modules/forms/widgets/cool-form.php#L711
- changeset/3772891/extensions-for-elementor-form/trunk/assets/js/shared/logic-frontend.js